Cultivator



(No Model.) v v 2 Sheets-Sheet 1.

W. P. BBTTEND'ORF. v

GULTIVATOR.

umllMl (NoModel.) -2 sheets-sheet 2.

W. P. BIETTENDORF.

GULTIVATOR.

No. 466,216. Patented Deo. 29, 1891.

- vation of the yoke or saddle. Fig. 8 is aview UNITED STATES PATENT OFFICE.

WILLIAM P. EETTENDOEE, or DAVENPORT, IOWA CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 466,216, dated December 29, 1891.

Application tiled August 5, 1891. Serial No. 401,756. (No model.)

T0 all whom it may concern.-

Be it known that I, WILLIAM P. BETTEN- DORE, of Davenport, county of Scott, and State of Iowa, have invented a new and useful Improvement in Cultivators, of which the following is a specication.

This invention has reference to a peculiar construction of the laterally and vertically swinging beams which are used in cultivators for the purpose of carrying at their rear ends the yokes or cross-bars to which the shovels are attached.

The invention has in View the construction of the beam, the draft-head or coupling, and the cross-head or saddle from sheet metal, so that they may be produced cheaply and without the use of massive machinery in forms such as to well resist the strains encountered in practice.

In the accompanying drawings, Figure l is a top plan View of a cultivator-beam and con- :nections in accordance with my invention. Fig. 2 is a side elevation of the same, with portions shown in vertical section. Fig. 3 is a cross-section on the line 2 2 of Figs. l and 2. Fig. 4 is aperspective vievsT of the blank from which the beam is formed. Fig. 5 is a plan view'of the blank from which the draft-head or coupling is formed. Fig. 6 is a front elevation of the coupling. Fig. 7 is a front eleof the blank from which the yoke is formed. Fig. 9 is a perspective view of a modication.

Referring to the drawings, A represents a beam; B, the draft-head or coupling, to which it is connected by a vertical pivot-pin ai; D, the transverse cross-head or saddle pivotally connected to the rear end of the beam to carry the shovelstandards, and F. the so-called parallel bar lying alongside of the beam and 'connecting the saddle with the coupling in order to keep the cross-head parallel with the front axle and prevent the shovels from changing their angle as they are moved laterally by the beam, as in other machines.

I construct my beam from a single sheet or plate of metal cut to suitable size and shape and bent into tubular form in cross-section. I preferably adopt the circular form, as shown in Fig. 3; but the form may be elliptical or angular, if preferred. At its forward end I form the blank with the two perforated arms or extensions a a. Before or after the blank is bent into tubular form these arms, which lie l .sockets ce', having vertical perforations therethrough and adapted to receive the conical pivots a2, seated in the coupling, and the vertical bolt as, by which the centers are held to their places, as in existing machines. The form of the sockets to receive the pivots or centers may be varied at the will of the constructer, according to the shape and detailsof the pivot which may be employed. Near the rear end I provide the blank with a longitudinal incision a5, and after it is bent into tubular form, so that this incision lies on one side and the joint between the edges of the plate at the opposite side, I bend the upper and lower portions of the beam upward and downward, respectively, as shown at a,

Fig. 2, thus widening the beam vertically, or,

in other words, giving it an increased vertical depth at this point in order to adapt it the better to receive and carry the cross-head. The portions a6 are by suitable dies formed with upper and lower sockets a7 to receive the pivots as of the cross-head; but these sockets may be varied in form at will to suit the shape of the pivots employed. In order to give increased rigidity to the curved portions a, I ordinarily form them with longitudinal ribs or corrugations a9. These are not, however, necessary features.

The coupling or drawhead through which the drag-bar is connected with the axle is constructed from a fiat blank of the shape shown in Fig. 5, cut from sheet metal and thereafter bent into shape. As shown in Fig. 5, this blank has at the middletwo oppositely-project-ing perforated arms b and to the right and left of these arms the widened portions b',-

oue of which is provided on opposite edges with projecting perforated ears Z22. The portions h are each bent or curled into the form of a tube or sleeve to encircle the axle F, while the perforated arms b are bent over into position parallel with each other, forming a fork or stirrup to admit the end of the beam IOO between them and to receive the vertical hinge-pin a3, as shown in Figs. 2 and The projecting ears b2, being closed together, as shown in Figs. l and 2, serve to receive and hold the forward end of the parallel rod E. In order to give the coupling' increased rigidity, I prefer to form the vertical rib or corrugation b3 thereon, as shown in Figs. 1,2, and' 0; but this is not a necessary feat-u re.

In order to adapt the arms I) to receive and iirmlyto hold the tubular pivots a2, by which the beam is connected to the coupling, I upset or otherwise shape the ends l) in suitable dies, so as to produce enlarged sockets thereon, as shown at b5, these sockets having vertical holes through them for the passage of the pivot-bolt a3, by which the pivots or centers are kept in place. It is to be understood, however, that the shape of the sockets may be modified according to the nature of the pivotal connection.

It is generally the custom in this class of machines to provide the coupling or drafthead with an upwardly or laterally projecting arm with which to connect a spring tending to turn the coupling around the axle, and thus to assist in the elevation of the beam and shovel. When this arm is to be used, it may be formed integral with the coupling, as shown at D6. It will be formed in the first instance on one end of the blank (shown in Fig. 5 as in dotted lines) and subsequently bent latererally into the required position.

The cross-head or saddle D, by which the shovel-standards are to be carried in the usual manner, is formed from a single plate `of metal cut to the form shown in Fig. 8, or in substantially the same form, the blank being doubled or bent back upon itself and united at the two ends, so that it forms a long yoke or saddle adapted to encircle the rear widened portion of the beam, with which it is connected midway of its length by the conical pivots as, previously referred to. The connection of the two ends of the blank is best eiected by providing it at one end with tongues (Z, which are inserted and riveted through the corresponding openings d at the opposite end. At its middle the saddle is subjected to the action of dies or other forming devices adapted to produce therein the annular hubs or necks d to receive the pivots as, by which the neck is connected to the beam, as before mentioned. Vertical openin gs are made through the sockets and pivots to receive the pivot-bolt, by which the centers are held to their places. It is to be understood that the pivotal connections may be modied and that the form of the sockets or collars will be modified to correspond. 'lheincreased rigidity maybe given to the cross-head by forming beads or flanges di along its edges; but this may be omitted or modified in form.

It is customary to use at one extremity of the cross-head a shovel-standard having a vertical upper end and at the opposite end of the cross-head a standard having a horizontal up per end. In order that these vertical and horizontal ends may be attached to the cross-head and each at a greater or less distance from the center, according to the distance required between the shovels7 I adopt the following construction: At one end I punch lips d outward, as shown in Figs. l, 7, and S,in suitable position to admit of the standard being seated vertically between them. I also punch through the metal, at points near the middle, openings d, one directly over the other, to admit of the standard being inserted therethrough. At the opposite end of the cross-head, which is to receive the horizontal standard, I project the lips di outward beyond the vertical end wall (ZS, so that the standard maybe confined either against the outer or the inner side of this wall, as required.

As shown in Fig. 9, I may form the handle integral with the beam instead of adapting the beam to receive a separate handle.

Having thus described n y invention, what I claim isw- 1. A tubular cultivator-beam having its forward end divided and spread in the form of two arms, substantially as shown.

2. A cultivator-beam consisting ot' a single plate of metal folded into tubular form, with its forward end divided and spread vertically and the ends of the resulting arms pressed into the form of sockets or bearings, substantially as shown.

3. The tubular beam incised and spread vertically near the rear end and having sockets or pivot-bearings formed integral with the expanded portion, substantially as shown an d described.

t. The tubular cultivator-beam having the upturned fiattened rear end integral therewith.

5. A tubular cultivator-beam having a portion divided or incised horizontally and separated vertically and having longitudinal ribs or corrugations formed in these separated portions to keep them in shape.

G. The cultivator-coupling consisting of a plate of metal bent into tubular form to clasp the axle and provided with the projecting arms or ears, with openings to receive a vertical'pivot-pin.

7. The cultivator-eoupling having the arms to receive the coupling-pin, the two sleeves to clasp the axle, and the arm to receive the parallel pin, the whole formed from a single plate, substantially such as shown, bent into shape.

8. A cultivator-yoke or cross-head consist ing of a single plate of metal doubled or returned upon itself in substantially the form shown, one end being formed with tenons, which are projected through and riveted fast to the other end.

9. The sheet-metal cross-head consisting of IOO IIO

a single plate of metal doubled upon itself, In testimony whereof I hereunto set my united at the ends, and bent along the edges hand, this 29th day of June, 1891,in the presro into strengthening-danges d. ence of two attesting witnesses.

10. The onltivator cross-head eonsistin0p of T 1 a single piece of sheet metal doubled uoon WILLIAM P' BETTEBDORB itself, riveted together at the ends, and pressed Witnesses: up at its middle to form sockets or bearings THOS. B. CARSON, for zt Vertical pivot. EARL CLARK. 

